A quay gantry crane is a type of crane used in port and container terminals to load and unload container ships. It is a large crane that runs on rails along the quay, which is the area where ships dock. The gantry crane is mounted on beams that span the width of the dock, allowing it to move from side to side to reach containers on different parts of the ship. It is often operated by a trained operator from a cabin or control room, who uses a variety of controls to move the crane and lift and place containers onto trucks or other transportation vehicles. Quay gantry cranes are essential for efficient and safe cargo handling at ports and are designed cargo handling at ports and are designed to handle containers of all sizes and weights.